BroadChain, April 27, 07:06, according to Bitcoinist, the Litecoin network suffered a denial-of-service attack due to a zero-day vulnerability. The attacker exploited a vulnerability in the MWEB privacy layer to attempt double-spending on cross-chain protocols. The Litecoin Foundation confirmed that the vulnerability has been fixed and the network has returned to normal.
The attack caused unupdated nodes to process invalid MWEB transactions, allowing the attacker to bridge tokens to a third-party decentralized exchange. The foundation reversed invalid transactions through a 13-block reorganization, during which all valid transactions remained unaffected.
Aurora Labs CEO Alex Shevchenko pointed out that the attacker was aware of the vulnerability in advance and planned to exchange LTC for ETH, questioning its "zero-day" nature. He believes the attack was executed by reducing hashrate, and the protocol automatically handled the reorganization after the DOS stopped, indicating that some nodes were already running updated code.
As of press time, LTC is priced at $55.92, with a 24-hour decline of approximately 1.2%.